MolReasoner:迈向分子大语言模型的有效且可解释的推理
MolReasoner: Toward Effective and Interpretable Reasoning for Molecular LLMs
AI总结:
MolReasoner通过两阶段框架提升分子大语言模型的推理能力和可解释性,有效减少幻觉并提高生成质量。
摘要:
大型语言模型(LLMs)在各种领域展现出卓越的性能,但其进行分子推理的能力仍处于探索阶段。现有方法大多依赖通用提示,缺乏特定分子语义,或微调,面临可解释性和推理深度的挑战,往往导致结构和文本幻觉。为了解决这些问题,我们引入了MolReasoner,一个两阶段框架,将LLMs从记忆转换为高保真化学推理。在Mol-SFT阶段,知识增强的思维链(CoT)数据提供了坚实的基础,而Mol-RL阶段利用新颖的任务自适应奖励系统来减轻幻觉。广泛的评估显示,MolReasoner在分子生成和描述任务中显著优于广泛的强基线。进一步分析突显了该框架的协同设计及其产生更可解释输出的能力。我们的工作提出了一个原则性且有效的新型方法,以推进高保真分子推理。
英文摘要:
Large Language Models (LLMs) have shown impressive performance across various domains, but their ability to perform molecular reasoning remains underexplored. Existing methods mostly rely on general-purpose prompting, which lacks domain-specific molecular semantics, or fine-tuning, which faces challenges in interpretability and reasoning depth, often leading to structural and textual hallucinations. To address these issues, we introduce MolReasoner, a two-stage framework that transitions LLMs from memorization to high-fidelity chemical reasoning. In the Mol-SFT stage, knowledge-enhanced Chain-of-Thought (CoT) data provides a strong foundation, while the Mol-RL stage refines reasoning using a novel, task-adaptive reward system to mitigate hallucinations. Extensive evaluations demonstrate that MolReasoner significantly outperforms a wide range of strong baselines in both molecule generation and captioning tasks. Further analyses highlight the framework's synergistic design and its ability to produce more interpretable outputs. Our work presents a principled and effective new approach for advancing high-fidelity molecular reasoning.
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